Home / 36,422.72-54,660-28,111.04

Finding the Fourth Proportional to 36,422.72, 54,660 and 28,111.04

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Solution

The fourth proportional to 36,422.72, 54,660 and 28,111.04 is: 42,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,422.72 : 54,660 = 28,111.04 : x
  2. Step 2: Convert to fraction form
    36,422.72/54,660 = 28,111.04/x
  3. Step 3: Cross multiply
    36,422.72x = 54,660 × 28,111.04
  4. Step 4: Simplify right side
    36,422.72x = 1,536,549,446.40
  5. Step 5: Solve for x
    x = 1,536,549,446.40/36,422.72
  6. Step 6: Final answer
    x = 42,186.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.